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Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. Example: 阅读全文
posted @ 2018-04-14 22:33
bonelee
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You are climbing a stair case. It takes n steps to reach to the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you cl 阅读全文
posted @ 2018-04-14 13:09
bonelee
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Given a binary tree, return all root-to-leaf paths. For example, given the following binary tree: All root-to-leaf paths are: stack 迭代解法： BFS:（和dfs st 阅读全文
posted @ 2018-04-14 12:58
bonelee
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Given a list of strings words representing an English Dictionary, find the longest word in words that can be built one character at a time by other wo 阅读全文
posted @ 2018-04-14 11:55
bonelee
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from:https://www.cnblogs.com/justinh/p/7716421.html Trie，又经常叫前缀树，字典树等等。它有很多变种，如后缀树，Radix Tree/Trie，PATRICIA tree，以及bitwise版本的crit-bit tree。当然很多名字的意义其实 阅读全文
posted @ 2018-04-14 10:52
bonelee
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